keyword
MENU ▼
Read by QxMD icon Read
search

control o breathing

keyword
https://www.readbyqxmd.com/read/28924264/neurocognitive-and-behavioral-functioning-in-adolescents-with-sleep-disordered-breathing-a-population-based-dual-energy-x-ray-absorptiometry-study
#1
S S Frye, J Fernandez-Mendoza, S L Calhoun, J Gaines, M D Sawyer, F He, D Liao, A N Vgontzas, E O Bixler
BACKGROUND/OBJECTIVES: Sleep disordered breathing (SDB) has been associated with neurocognitive and behavioral problems in young children; however, this association is less studied in adolescents. Evidence suggests that obesity plays a key role in the development of SDB, although its relative association with neurobehavioral functioning remains unclear. We examined whether SDB and obesity are associated with neurocognitive and behavior problems in adolescents. SUBJECTS/METHODS: 421 adolescents (17...
September 19, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28901297/metabolic-effects-of-inhaled-salbutamol-determined-by-exhaled-breath-analysis
#2
Martin T Gaugg, Anna Engler, Yvonne Nussbaumer-Ochsner, Lukas Bregy, Anna S Stöberl, Thomas Gaisl, Tobias Bruderer, Renato Zenobi, Malcolm Kohler, Pablo Martinez-Lozano Sinues
We explore whether real-time breath analysis by high resolution mass spectrometry is suitable to monitor changes at the metabolic level due to inhaling bronchodilator medication. We compared the breath levels of metabolites in a group of patients (n = 50) at baseline and 10 and 30 min after inhalation of 200 μg salbutamol. The same procedure was performed with a group of controls (n = 48) inhaling a placebo spray. A total of 131 mass spectral features were significantly altered as a result of inhaling medication, but not after inhaling placebo...
September 13, 2017: Journal of Breath Research
https://www.readbyqxmd.com/read/28875971/-exercise-capacity-in-patients-with-pulmonary-sarcoidosis
#3
Justyna Błaut-Jurkowska, Klaudia Knap, Magdalena Kaźnica-Wiatr, Agnieszka Żygadło, Lidia Tomkiewicz-Pająk, Piotr Podolec, Maria Olszowska
Exertional dyspnea is a common manifestation of sarcoidosis. Cardiopulmonary exercise testing (CPET) is a useful tool to evaluate exercise tolerance of sarcoid patients. AIM: The aim of the study was to evaluate of exercise capacity in patients with pulmonary sarcoidosis with regard to duration of the disease. Analysis of differences in physical tolerance between patients with cardiac sarcoidosis and without cardiac sarcoidosis. MATERIALS AND METHODS: 39 patients diagnosed with pulmonary sarcoidosis were enrolled to our study...
August 21, 2017: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28864843/pupillary-autonomic-dysfunction-in-patients-with-anca-associated-vasculitis
#4
Philipp Moog, O Eren, S Kossegg, K Valda, A Straube, M Grünke, H Schulze-Koops, M Witt
OBJECTIVE: To assess autonomic function by infrared dynamic pupillometry in patients with ANCA-vasculitis (AAV) in correlation to autonomic symptoms, disease specific clinical parameters and cardiovascular reflex tests. METHODS: Patients with AAV and healthy controls underwent pupillometry at rest and after sympathetic stimulation (cold pressor test). Three parasympathetic parameters (amplitude, relative amplitude, maximum constriction velocity) and one sympathetic parameter (late dilatation velocity) were assessed...
September 1, 2017: Clinical Autonomic Research: Official Journal of the Clinical Autonomic Research Society
https://www.readbyqxmd.com/read/28832898/spontaneous-breathing-trials-after-prolonged-mechanical-ventilation-monitored-by-electrical-impedance-tomography-an-observational-study
#5
Z Zhao, S-Y Peng, M-Y Chang, Y-L Hsu, I Frerichs, H-T Chang, K Möller
BACKGROUND: The study objective was to examine the correlation between regional ventilation distribution measured with electrical impedance tomography (EIT) and weaning outcomes during spontaneous breathing trial (SBT). METHODS: Fifteen patients received 100% automatic tube compensation (ATC) during the first and 70% during the second hour. Another 15 patients received external continuous positive airway pressure (CPAP) of 5 and 7.5 cmH2 O during the first and second hours, respectively...
August 17, 2017: Acta Anaesthesiologica Scandinavica
https://www.readbyqxmd.com/read/28767913/spontaneous-breathing-test-in-the-prediction-of-extubation-failure-in-the-pediatric-population
#6
Milena Siciliano Nascimento, Celso Moura Rebello, Luciana Assis Pires Andrade Vale, Érica Santos, Cristiane do Prado
Objective: To assess whether the spontaneous breathing test can predict the extubation failure in pediatric population. Methods: A prospective and observational study that evaluated data of inpatients at the Pediatric Intensive Care Unit between May 2011 and August 2013, receiving mechanical ventilation for at least 24 hours followed by extubation. The patients were classified in two groups: Test Group, with patients extubated after spontaneous breathing test, and Control Group, with patients extubated without spontaneous breathing test...
April 2017: Einstein
https://www.readbyqxmd.com/read/28751866/ventilatory-efficiency-in-children-and-adolescents-born-extremely-preterm
#7
Julie Hestnes, Hedda Hoel, Ole J Risa, Hanna O Romstøl, Ola Røksund, Bente Frisk, Einar Thorsen, Thomas Halvorsen, Hege H Clemm
Purpose: Children and adolescents born extremely preterm (EP) have lower dynamic lung volumes and gas transfer capacity than subjects born at term. Most studies also report lower aerobic capacity. We hypothesized that ventilatory efficiency was poorer and that breathing patterns differed in EP-born compared to term-born individuals. Methods: Two area-based cohorts of participants born with gestational age ≤28 weeks or birth weight ≤1000 g in 1982-85 (n = 46) and 1991-92 (n = 35) were compared with individually matched controls born at term...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28724778/eupnea-tachypnea-and-autoresuscitation-in-a-closed-loop-respiratory-control-model
#8
Casey O Diekman, Peter J Thomas, Christopher G Wilson
How sensory information influences the dynamics of rhythm generation varies across systems, and general principles for understanding this aspect of motor control are lacking. Determining the origin of respiratory rhythm generation is challenging because the mechanisms in a central circuit considered in isolation may be different than those in the intact organism. We analyze a closed-loop respiratory control model incorporating a central pattern generator (CPG), the Butera-Rinzel-Smith (BRS) model, together with lung mechanics, oxygen handling, and chemosensory components...
July 19, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28699827/evaluation-of-a-passive-method-for-determining-particle-penetration-through-protective-clothing-materials
#9
Peter A Jaques, Lee Portnoff
The risk of workers' exposure to aerosolized particles has increased with the upsurge in the production of engineered nanomaterials. Currently, a whole-body standard test method for measuring particle penetration through protective clothing ensembles is not available. Those available for respirators neglect the most common challenges to ensembles, because they use active vacuum-based filtration, designed to simulate breathing, rather than the positive forces of wind experienced by workers. Thus, a passive method that measures wind-driven particle penetration through ensemble fabric has been developed and evaluated...
July 12, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/28627036/validation-of-masks-for-determination-of-v%C3%AC-o2-max-in-horses-exercising-at-high-intensity
#10
R H Sides, R Kirkpatrick, E Renner, K Gough, L M Katz, D L Evans, W M Bayly
BACKGROUND: The need for a horse to be ridden while wearing a measurement device that allows unrestricted ventilation and gas exchange has hampered accurate measurement of its maximal oxygen consumption (V̇O2 max) under field conditions. OBJECTIVES: Design and validate a facemask with the potential to accurately measure V̇O2 max in the field. STUDY DESIGN: Experiment with 6 x 6 Latin square design. METHODS: Two variations of a mask and associated electronic control module (ECM) were designed to enable breath-by-breath measurement of airflows through two 7...
June 19, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28622248/quantitative-perfusion-analysis-of-the-rectum-using-golden-angle-radial-sparse-parallel-magnetic-resonance-imaging-initial-experience-and-comparison-to-time-resolved-angiography-with-interleaved-stochastic-trajectories
#11
Ulrike I Attenberger, Jing Liu, Philipp Riffel, Johannes Budjan, Robert Grimm, Kai T Block, Stefan O Schoenberg, Xiaoying Wang, Daniel Hausmann
OBJECTIVES: Purpose of this study was to compare the quality of perfusion maps obtained from prototypical free-breathing magnetic resonance imaging (MRI) with continuous golden-angle radial sampling and iterative reconstruction (GRASP) to conventional acquisition using time-resolved angiography with interleaved stochastic trajectories (TWIST) in patients with rectal cancer. MATERIAL AND METHODS: Forty cases were included for retrospective analysis. Twenty of the patients received routine multiparametric MRI at 3 T for rectal cancer staging, including perfusion measurement with GRASP or TWIST (10 patients for each technique, including 5 prechemoradiation and 5 postchemoradiation)...
June 16, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28575566/-adaptation-to-intermittent-hypoxia-hyperoxia-improves-cognitive-performance-and-exercise-tolerance-in-elderly
#12
U Bayer, O S Glazachev, R Likar, M Burtscher, W Kofler, G Pinter, H Stettner, S Demschar, B Trummer, S Neuwersch
For improvements in exercise tolerance and cognitive function in geriatric patients Multimodal training programs (MTP) are used as combination of physiotherapy, occupational therapy and cardiovascular training. Intermittent Hypoxic-Hyperoxic Training (IHHT), a modified type of intermittent hypoxic training (IHT) is proposed to be included in MTP to elicit more pronounced beneficial effects in exercise tolerance and cognitive functions of geriatric patients likely by an additional pathway than a single MTP. Thirty four patients of the Geriatric Day Clinic aged between 64 and 92 years participated in the placebo controlled clinical trial...
2017: Advances in Gerontology, Uspekhi Gerontologii
https://www.readbyqxmd.com/read/28569242/-13-c-isotopic-abundances-in-natural-nutrients-a-newly-formulated-test-meal-for-non-invasive-diagnosis-of-type-2-diabetes
#13
Chiranjit Ghosh, Santanu Mandal, Mithun Pal, Prabuddha Mukhopadhyay, Shibendu Ghosh, Manik Pradhan
A new method to replace commercially prepared (13)C-labelled glucose with naturally available (13)C-enriched substrates could result in promotion of the clinical applicability of the isotopic breath test for detection of type 2 diabetes (T2D). Variation of the carbon-13 isotope in human breath depends on the (13)C enrichment in the diet taken by subjects. Here, we formulated a new test meal comprising naturally available (13)C-enriched foods and subsequently administered it to non-diabetic control (NDC) subjects and those with T2D...
June 1, 2017: Journal of Breath Research
https://www.readbyqxmd.com/read/28534875/dose-dependent-social-cognitive-effects-of-intranasal-oxytocin-delivered-with-novel-breath-powered-device-in-adults-with-autism-spectrum-disorder-a-randomized-placebo-controlled-double-blind-crossover-trial
#14
D S Quintana, L T Westlye, S Hope, T Nærland, T Elvsåshagen, E Dørum, Ø Rustan, M Valstad, L Rezvaya, H Lishaugen, E Stensønes, S Yaqub, K T Smerud, R A Mahmoud, P G Djupesland, O A Andreassen
The neuropeptide oxytocin has shown promise as a treatment for symptoms of autism spectrum disorders (ASD). However, clinical research progress has been hampered by a poor understanding of oxytocin's dose-response and sub-optimal intranasal delivery methods. We examined two doses of oxytocin delivered using a novel Breath Powered intranasal delivery device designed to improve direct nose-to-brain activity in a double-blind, crossover, randomized, placebo-controlled trial. In a randomized sequence of single-dose sessions, 17 male adults with ASD received 8 international units (IU) oxytocin, 24IU oxytocin or placebo followed by four social-cognitive tasks...
May 23, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28440225/observation-of-nonanoic-acid-and-aldehydes-in-exhaled-breath-of-patients-with-lung-cancer
#15
L Callol-Sanchez, M A Munoz-Lucas, O Gomez-Martin, J A Maldonado-Sanz, C Civera-Tejuca, C Gutierrez-Ortega, G Rodriguez-Trigo, J Jareno-Esteban
Lung cancer (LC) is the leading cause of cancer death in men and the second leading cause in women worldwide. The use of low-dose computed tomography in early diagnosis was shown to reduce mortality by 20% with a median follow-up time of 6.5 years. In order to increase profitability and reduce radiation risks and costs, exhaled biomarkers could serve to help establish narrower inclusion criteria. The aim of this study was to identify new, well-founded volatile organic compounds in exhaled breath which distinguish LC patients from chronic obstructive pulmonary disease (COPD) patients and healthy subjects...
April 25, 2017: Journal of Breath Research
https://www.readbyqxmd.com/read/28390605/association-of-sleep-disordered-breathing-symptoms-with-early-postoperative-analgesic-requirement-in-pediatric-ambulatory-surgical-patients
#16
Kamie Yang, Anne Baetzel, Wilson T Chimbira, Yuliya Yermolina, Paul I Reynolds, Olubukola O Nafiu
INTRODUCTION: Sleep disordered breathing (SDB) symptoms are associated with increased rates of opioid-induced respiratory depression as well as enhanced nociception. Consequently, practitioners often withhold or administer lower intraoperative doses of opioids out of concern for postoperative respiratory depression. Therefore, SDB may be a critical determinant of analgesic requirement in the post-anesthesia care unit (PACU). We investigated whether preoperative SDB classification was independently associated with need for PACU analgesic intervention in a cross-sectional sample of 985 children who underwent elective, painful ambulatory surgical procedures...
May 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28350962/multidimensional-hybridization-of-dark-surface-plasmons
#17
Andrew B Yankovich, Ruggero Verre, Erik Olsén, Anton E O Persson, Viet Trinh, Gudrun Dovner, Mikael Käll, Eva Olsson
Synthetic three-dimensional (3D) nanoarchitectures are providing more control over light-matter interactions and rapidly progressing photonic-based technology. These applications often utilize the strong synergy between electromagnetic fields and surface plasmons (SPs) in metallic nanostructures. However, many of the SP interactions hosted by complex 3D nanostructures are poorly understood because they involve dark hybridized states that are typically undetectable with far-field optical spectroscopy. Here, we use experimental and theoretical electron energy loss spectroscopy to elucidate dark SPs and their interactions in layered metal-insulator-metal disc nanostructures...
April 25, 2017: ACS Nano
https://www.readbyqxmd.com/read/28314215/a-metabolomic-approach-shows-sphingosine-1-phosphate-and-lysophospholipids-as-mediators-of-the-therapeutic-effect-of-liver-growth-factor-in-emphysema
#18
A Navarrete, F J Rupérez, T O Mendes, S Pérez-Rial, A Girón-Martínez, R Terrón-Expósito, J J Díaz-Gil, G Peces-Barba, C Barbas, A García
Tobacco smoke exposure is the principal cause of lung tissue destruction, which in turn results in emphysema that leads into shortness of breath. Liver growth factor (LGF, a cell and tissue regenerating factor with therapeutic activity in several organs) has antifibrotic and antioxidant properties that could be useful to promote lung tissue regenerating capacity in damaged lungs. The current study has examined differences in metabolite profiles (fingerprints) of plasma from mice (strain C57BL/6J, susceptible to develop emphysema) exposed to tobacco smoke during six months...
May 30, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28300372/lung-volume-reproducibility-under-abc-control-and-self-sustained-breath-holding
#19
Evangelia Kaza, Alex Dunlop, Rafal Panek, David J Collins, Matthew Orton, Richard Symonds-Tayler, Dualta McQuaid, Erica Scurr, Vibeke Hansen, Martin O Leach
An Active Breathing Coordinator (ABC) can be employed to induce breath-holds during CT imaging and radiotherapy of lung, breast and liver cancer, and recently during lung cancer MRI. The apparatus measures and controls respiratory volume, hence subject lung volume reproducibility is its principal measure of effectiveness. To assess ABC control quality, the intra-session reproducibility of ABC-induced lung volumes was evaluated and compared with that reached by applying the clinical standard of operator-guided self-sustained breath-holds on healthy volunteers during MRI...
March 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28267947/ambu%C3%A2-auragain%C3%A2-versus-lma-supreme%C3%A2-second-seal%C3%A2-a-randomised-controlled-trial-comparing-oropharyngeal-leak-pressures-and-gastric-drain-functionality-in-spontaneously-breathing-patients
#20
RANDOMIZED CONTROLLED TRIAL
I I Shariffuddin, W H Teoh, Ebk Tang, Nhm Hashim, P S Loh
Newer second generation supraglottic airway devices may perform differently in vivo due to material and design modifications. We compared performance characteristics of the Ambu® AuraGain™ and LMA Supreme™ Second Seal™ in 100 spontaneously breathing anaesthetised patients in this randomised controlled study. We studied oropharyngeal leak pressures (OLP) (primary outcome) and secondarily, ease of insertion, success rates, haemodynamic response, time to insertion, and complications of usage. We found no significant difference in OLP between the AuraGain versus the LMA Supreme, mean (standard deviation, SD) 24...
March 2017: Anaesthesia and Intensive Care
keyword
keyword
66537
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"